Ash-sifter



J. (JHYTRACEK.

ASH SIFTER.

APPLICATION FILED JUNE 4,1920.

Patented Sept. 28, 1920 2 SHEETSSHEET 2.

I u e I m y n I 1 Fla. 3

ghven '01: U; ('igirwce/z attorney PATENT OFFICE.

JOSEPH CHYTRAGEK, OF CLIFTON ldILLs, WEST VIRGINIA.

ASH-SIF'IER.

nssaeae.

Application filed June 4, 1920.

T all whom it may concern Be it known that I, Josnrrr CI-IYTRACEK, a citizen of the United States of America, residing at Clifton Mills, in the county of Preston and State of West Virginia, have invented certain new and useful Improvements in Ash-Sifters, of which the following as a specification.

The present invention relates to certain new and useful improvements in ash s'ifters and particularly to that type embodying a revoluble screen drum or cylinder positioned within a casing and adapted to be rotated by an operating crank.

A further object of the invention resides in the provision of an ash sifter embodying a rotatable sifting drum arranged within a casing and adapted for automatic projection from the casing when the casing lid is opened, and a controlling device is shifted to the required position.

lVith the above general objects in View and others that will appear as the nature of the invention is better understood, the same consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimed.

In the drawings, wherein like reference characters designate corresponding parts throughout the several views,

Figure 1 is a longitudinal sectional view of an ash sifter constructed in accordance withthe present invention,

Fig. 2 .is a vertical transverse sectional view on line-IIII of Fig. 1 showing the sifting drum supporting frame shifted in its dotted line position with. the sifting drum projecting from the casing in dotted line position,

Fig. 3 is a cross sectional View of the sifting drum removed from the casing and supporting frame,

Fig. 4 is a fragmentary sectional view showing the manner of attaching the operating crank to the screen cylinder, and

Fig. 5 is a fragmentary perspective view of the sifting drum supporting frame.

Referring more in detail to the accompanying drawings, there is illustrated an ash sifter formed of a casing including an inclined bottom wall 6, side walls 7 and a front top wall or cover 8 while a vertical sliding gate 9 controls the entries to the forward end of the casing. As shown in Figs. 1 and 2, the rear ends 7' of the side walls 7 Specification of Letters Patent.

Patented: Sept. 28, 1920.

Serial No. 386,525.

extendupwardly above the front cover wall 8 and are substantially circular at their upper ends and carry inwardly directed flanges 10 while a curved cover 11 is hinged at its rear edge as at 12 to the rear wall 13 of the casing while the forward edge thereof is suitably secured as by the clip 14 to the front cover wall 8.

A screen supporting frame is pivotally mounted within the casing and embodies a cross bar 15 positioned outwardly of the casing and above the cover 11 thereof while an operating. handle 16 is centrally carried thereby. As shown in Fig. 1, legs 17 and 18 are carried by the opposite ends of the cross bar 15 and freely extend through slots 19 provided in the flangeslO of the end wall extensions 7 with the inner ends thereof rotatably supported upon the end walls 7', the legs 17 carrying an apertured boss 20 received on the pin 21 carried by the wall 7 while the leg 18 carries an outwardly directed annular flange 22 rotatably supported upon the inwardly directed boss 28 carried by the adjacent end wall 7, this construction being more clearly shown in Figs. 1 and 4. In this manner, the sifting drum supporting frame is rotatably mounted within the casing upon the axially aline'dpin 21 for the arm 17 and the tubular boss 23 for the leg 18. Extensions 24 and 25, each slotted as at 26 are-carried by the legs 17 and 18 respectively, and extend therefrom at obtuse angles as shown in Figs. 2 and 5 to provide slidable bearings for the ends of the sifting drum.

The sifting drum is of the form best illustrated in Figs. 1 and 3 as embodying end disks 27 carrying axial pins 28 and 29 upon which blocks 80' are journaled, the blocks 30 being positioned between the legs 17 and 18 with the outer ends of the pins 28 and 29 projecting into the slots 26 of the leg extensions 24 and to form bearings for the cylinder disks. A screen section 31 is fixed at its ends to the disks 27, and the screen section 32 is hinged to the disks as at 88 at one side thereof, while the opposite side of the screen section 32 is provided with a clip 34 for securing the screen section in position. Vith the sifting drum supporting frame in the full line position shown in Fig. 2, the leg extensions 24 and 25 are declined as illustrated and the bearing pins 28 and 29 are retained in the ends of the slots 26 adjacent the bearings by the springs 35 secured at one end as at 36 to the flanges 10 and at the other ends as at 37 'to the blocks 30.

A crank 38 is adapted to be projected through the tubular boss 23 for engagement with the crank end 39 of the bearing pin 29, and by rotation of the crank 38 the pin 29 being fixed to the adjacent disk 27 will rotate the sifting drum upon the pins 28 and 29 with the blocks 30 remaining stationary, and with the ends of the slots 26 adjacent the bearings 2.0 and 23 forming the journal bearings for said pins. In order to introduce ashes or other material into the screen to be sifted, the-cover 11 is opened to the dotted line position shown in Fig. 2 and the handle 16 of the screen supporting frame moved downwardly adjacent the front cover wall 8 to vertically position the slotted leg extensions 2 and 25, at which time the springs 35 will elevate the blocks 30 and the bearing pins' in the extension slots 26 to project the sifting drum through the opening created by the opening of the cover 11. WVhen so arranged, the screen section 32 may be opened and the material introduced into the sifting drum. In a reverse manner, the sifting drum is lowered into the casing, by pressing downwardly upon the same and thereafter shifting the handle frame 15 to cause the slotted leg extensions 24: and 25 to be downwardly directed as shown in Fig. 2. Again, when in this position, the application of the crank 38 to the bearing pin 29 will effect rotation of the sifting drum within the casing and the finer particles delivered upon the bottom wall 6 may be removed by elevating the front gate 9.

While there is herein shown and described the preferred embodiments of the present invention, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

What is claimed as new is r 1. An ash sifter of the type described comprising a casing, a sifting drum revolubly mounted within the casing, and movable means for supporting the drum adaptmeans for supporting the drum adapted upon shifting movement thereof automatically to pro ect. the drum from the casing,

said movable means including a frame having slotted legextensions in which the drum is revolubly mounted, and springs arranged between the casing and drum for moving the drum in said slots.

l. An ash sifter of the type described comprising a casing, a sifting drum revolubly mountedwithing the casing, and movable-means for supporting the drum adapted upon shifting movement thereof automatically to project the drum from the easing, said means including a frame having slotted legextensions in which the drum is rotatably mounted and normally positioned with the outer endsof the slots declined.

5. An ash sifter of the type described comprising a casing, a sifting drum revolubly mounted within the casing, movable means for supporting the drum adapted upon shifting movement thereof automatically to project the drum from the casing, said means including a frame having slotted leg extensions in which the drum is rotatably mounted and normally positioned with the outer ends of the slots declined, and means forholding the rotatable drum in the upper ends ofthe slots when the drum is positioned within the casing.

In testimony whereof I afiix my signature.

JOSEPH GHYTRACEK. 

